A party takes place in Oskar Ottman's luxurious mansion. At 9 pm Oskar goes to his bureau because he doesn't feel well. At midnight he is discovered lying dead in his bureau. Mord in der Villa is mixture of board game and role play. Each player gets a character and instructions on how to play their character. The players try to find the murderer who is one of them. The murderer tries to avoid being found. There are 2 parts: Moving a pawn around the plan of the palace by rolling a die to find objects. Interrogate the other players to get more information.